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Приказ резултата 11-20 од 440
Research of injuries of passengers in city buses as a consequence of non-collision effects
(IOS Press, Amsterdam, 2012)
In this study, a research of injuries of passengers in city buses is presented, which are not a consequence of collision of buses with other objects. The number of injured passengers in the territory of Belgrade was ...
Groundwater heat pump selection for high temperature heating retrofit
(Elsevier Science Sa, Lausanne, 2012)
Retrofitting of fossil fuel powered hot water radiator heating systems of the existing buildings by groundwater heat pumps can provide significant energy savings followed by economic and environmental benefits. The paper ...
Eksperimentalno ispitivanje akumulacije toplote u akumulatoru toplote primenom faznopromenljivog materijala / Experimental investigation on accumulation of heat by phase change material in the thermal energy storage
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2012)
U radu je data opšta diskusija o razlozima primene akumulatora toplote i fazno-promenljivih materijala kao skladišnih medijuma. Dat je deo eksperimentalnih rezultata dobijenih merenjem tokom procesa promene faze parafina. ...
Redesign of the vital subsystems as a way of extending the bucket wheel excavators life
(Technics Technologies Education Management, 2012)
As it is widely known, there are three basic reasons for the bucket wheel excavators subsystems redesign: (1) better customization of the machine versus operating conditions; (2) easier maintenance and (3) failure of the ...
Identification of residual stresses by instrumented elliptical indentation and inverse analysis
(Pergamon-Elsevier Science Ltd, Oxford, 2012)
The residual stress tensor near the surface of a metal structural component or products of metallurgical processes (particularly welding) is considered in view of the estimation of its governing components. These are: the ...
Fly-through animacija kao vid savremene prezentacije u građevinarstvu i arhitekturi / Fly-through animation as a way of modern presentation in civil engineering and architecture
(Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd, 2012)
U ovom radu dat je pregled korišćenja Fly Through animacije, posebno u građevinarstvu i arhitekturi. Prikazana su tri istorijski značajna objekta - Gimnazija 'Jovan Jovanović Zmaj', Departman za arhitekturu i urbanizam i ...
Upravljanje necelobrojnog reda jednim robotskim sistemom pogonjenog jednosmernim motorima / Fractional order control of a robot system driven by dc motors
(Vojnotehnički institut, Beograd, 2012)
U ovom radu, predstavljeni su novi PID algoritmi upravljanja zasnovani na računu necelobrojnog reda i optimalnoj proceduri u zadatku pozicioniranja robotskog sistema sa tri stepena slobode pogonjen jednosmernim motorima. ...
Ispitivanje ujednačenosti isejavanja semena metodom odzivnih površina / Research of seeding distance uniformity by response surface methodology
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2012)
Predmet ovog rada je optimizacija ujednačenosti isejavanja semena korišćenjem metode odzivnih površina i provera optimalnog nivoa promenljivih. Promenljive su modelirane kao potpritisak na setvenim pločama, prečnik setvenih ...
Ponašanje vodenog sloja suznog filma kao sredstva za podmazivanje u mikro i nano području / Micro and nano lubricant behavior of tear film aqueous layer
(Contemporary materials, 2012)
Suze obezbeđuju vlažnost i snabdevaju kiseonikom i ostalim važnim sastojcima rožnjaču, mehanički uklanjaju strana tela i hemikalije i održavaju je glatkom i optički providnom. Dodatno, tokom treptanja, suzni film podmazuje ...
Asymptotic behavior of orthogonal trigonometric polynomials of semi-integer degree
(Elsevier Science Inc, New York, 2012)
Orthogonal systems of trigonometric polynomials of semi-integer degree with respect to a weight function w(x) on (0, 2 pi) have been considered firstly by Turetzkii [A.H. Turetzkii, On quadrature formulae that are exact ...